USB hub



FIG. 1 is a front perspective view of a USB hub;

FIG. 2 is a side perspective view of a USB hub;

FIG. 3 is a side perspective view thereof, with the cord shown removed from the recessed portion of the hub.

FIG. 4 is a bottom perspective view of the USB hub;

FIG. 5 is a front view of the USB hub;

FIG. 6 is a rear view of the USB hub;

FIG. 7 is a top plan view of the USB hub;

FIG. 8 is a bottom plan view of the USB hub;

FIG. 9 is a right side view of the USB hub; and,

FIG. 10 is a left side view of the USB hub. 

The ornamental design for a USB hub, as shown and described. 